I have killed 2 bears, 1 muley buck, and last saturday killed a spike elk. The funny thing is I have changed out the blades on the broadhead, and all the animals were killed with the same broadhead body. I went through the elks shoulder blade and penetrated into the opp. shoulder, he ran 40 yards and was done. I love the mx-3. I also tried the mx-4 and they do want to plane after 30 yards.
Hope this helps